THE ACCUMULATION OF ELECTROLYTES : III. BEHAVIOR OF SODIUM, POTASSIUM, AND AMMONIUM IN VALONIA

When 0.001 M NH(4)Cl is added to sea water containing Valonia macrophysa there seems to be a rapid penetration of undissociated NH(3) (or NH(4)OH) which raises the pH value of the sap so that the thermodynamic potential of KOH becomes greater inside than outside and in consequence K leaves the cell:...

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Detalles Bibliográficos
Autores principales: Jacques, A. G., Osterhout, W. J. V.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1930
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2141109/
https://www.ncbi.nlm.nih.gov/pubmed/19872587
Descripción
Sumario:When 0.001 M NH(4)Cl is added to sea water containing Valonia macrophysa there seems to be a rapid penetration of undissociated NH(3) (or NH(4)OH) which raises the pH value of the sap so that the thermodynamic potential of KOH becomes greater inside than outside and in consequence K leaves the cell: NaOH continues to go in because its thermodynamic potential is greater outside than inside. NH(4)Cl accumulates, reaching a much higher concentration inside than outside. This might be explained on the ground that NH(3), after entering, combines with a weak organic acid produced in the cell whose anion is exchanged for the Cl(-) of the sea water, or (more probably) the organic acid is exchanged for HCl.

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